<template>
  <div class="header-box">
    <div class="header">
      <div class="content">
        <div class="logo full-left">
          <router-link to="/"><img src="/static/image/logo.svg" alt=""></router-link>
        </div>
        <ul class="nav full-left">
          <li v-for="nav in nav_list">
            <span v-if="nav.is_site"><a :href="nav.link">{{nav.title}}</a></span>
            <span v-else><router-link :to="nav.link">{{nav.title}}</router-link></span>

          </li>

        </ul>

        <div v-if="token" class="login-bar full-right">
          <div class="shop-cart full-left">
            <span class="shop-cart-total">{{$store.state.cart.cart_length}}</span>
            <img src="/static/image/cart.svg" alt="">
            <span><router-link to="/cart">购物车</router-link></span>
          </div>
          <div class="login-box login-box1 full-left">
            <router-link to="">学习中心</router-link>
            <el-menu width="200" class="member el-menu-demo" mode="horizontal">
              <el-submenu index="2">
                <template slot="title"><img src="/static/image/logo@2x.png" alt=""></template>
                <el-menu-item index="2-1">我的账户</el-menu-item>
                <el-menu-item index="2-2"><router-link to="/user/order">我的订单</router-link></el-menu-item>
                <el-menu-item index="2-3">我的优惠卷</el-menu-item>
                <el-menu-item index="2-3"><span @click="logoutHander">退出登录</span></el-menu-item>
              </el-submenu>
            </el-menu>
          </div>
        </div>

        <div v-else class="login-bar full-right">
          <div class="shop-cart full-left">
            <img src="/static/image/cart.svg" alt="">
            <span><router-link to="/cart">购物车</router-link></span>
          </div>
          <div class="login-box full-left">
            <router-link to="/user/login">登录</router-link>
            &nbsp;|&nbsp;
            <router-link to="/user/register">注册</router-link>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
    export default {
        name: "Header",
        data() {
            return {
                token:"",
                nav_list: [],
            }
        },
        created() {
            this.check_user_login(); //检查登录状态，是否登录
            this.get_nav();
        },
        methods: {
            check_user_login(){
                // 获取用户的登录状态
                this.token = sessionStorage.user_token || localStorage.user_token;
                return this.token;
            },
            get_nav() {
                this.$axios.get(`${this.$settings.HOST}/nav/header/`,
                    {}).then(response => {
                    this.nav_list = response.data;
                }).catch(error => {
                    console.log(error.response);
                })
            },
            logoutHander(){
                // 退出登录
                localStorage.removeItem("user_token");
                localStorage.removeItem("user_id");
                localStorage.removeItem("user_name");
                sessionStorage.removeItem("user_token");
                sessionStorage.removeItem("user_id");
                sessionStorage.removeItem("user_name");
                this.check_user_login();
            }
        }
    }
</script>

<style scoped>
  .header-box {
    height: 80px;
  }

  .header {
    width: 100%;
    height: 80px;
    box-shadow: 0 0.5px 0.5px 0 #c9c9c9;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    margin: auto;
    z-index: 99;
    background: #fff;
  }

  .header .content {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
  }

  .header .content .logo {
    height: 80px;
    line-height: 80px;
    margin-right: 50px;
    cursor: pointer; /* 设置光标的形状为爪子 */
  }

  .header .content .logo img {
    vertical-align: middle;
  }

  .header .nav li {
    float: left;
    height: 80px;
    line-height: 80px;
    margin-right: 30px;
    font-size: 16px;
    color: #4a4a4a;
    cursor: pointer;
  }

  .header .nav li span {
    padding-bottom: 16px;
    padding-left: 5px;
    padding-right: 5px;
  }

  .header .nav li span a {
    display: inline-block;
  }

  .header .nav li .this {
    color: #4a4a4a;
    border-bottom: 4px solid #ffc210;
  }

  .header .nav li:hover span {
    color: #000;
  }

  .header .login-bar {
    height: 80px;
  }
   /*改动长度*/
  .header .login-bar .shop-cart {
    margin-right: 20px;
    border-radius: 17px;
    background: #f7f7f7;
    cursor: pointer;
    font-size: 14px;
    height: 28px;
    width: 98px;
    margin-top: 27px;
    line-height: 32px;
    text-align: center;
  }

  .header .login-bar .shop-cart:hover {
    background: #f0f0f0;
  }

  .header .login-bar .shop-cart img {
    width: 15px;
    margin-right: 4px;
    margin-left: 6px;
  }

  .header .login-bar .shop-cart span {
    margin-right: 6px;
  }
   /*改动*/
  .header .login-bar .login-box {
    margin-top: 30px;
  }

  .header .login-bar .login-box span {
    color: #4a4a4a;
    cursor: pointer;
  }

  .header .login-bar .login-box span:hover {
    color: #000000;
  }

  /*添加样式*/
  .member{
    display: inline-block;
    height: 34px;
    margin-left: 20px;
}
.member img{
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: inline-block;
}
.member img:hover{
  border: 1px solid yellow;
}
/*改动顶部外边距*/
.header .login-bar .login-box1{
  margin-top: 13px;
}
</style>

